The Arena is a cool spot that lets all players get involved in some
special events. You’ll unlock The Arena after a certain point/area, so
it won’t be available immediately. Keep on questing so you can get your
hands on some Arena tickets. Perform strongly in those Arena events and
you’ll earn even more awesome loot. The key to completing quests is making sure to travel with a balanced deck of cards. When you do get a good number of powerful cards, don’t
overload your deck with them. Use a few of them when you’re questing.
Taking most or all of your powerful cards out into the questing field
will bring your Mana count down even faster. It takes a lot of Mana to
maintain strong cards, so you’ll have a hard time during battles since
you’ll have to recharge most of the time.